You will need a cable needle.

You will also need a size US 2.5 (3.0 mm) circular needle at least 52” (130 cm) long.

You will also need 7 buttons, approximately .75” (20 mm). Rowan used # TGN4775 Horn buttons from Textile Garden in the UK.

Finished measurements:
Chest circumference: 39.25( 43.5, 47.25, 52.25, 55.75, 60, 64.25, 68)“ 100( 110.5, 120, 132.5, 141.5, 152.5, 163.5, 172.5) cm
Finished length: 26( 26.75, 27.5, 28.25, 29.25, 30, 30.75, 31.5)” 66( 68, 70, 72, 74, 76, 78, 80) cm
Sleeve seam: 18.5( 19.25, 20, 20.5, 20.75, 20.75, 21.25, 21.25)“ 47( 49, 51, 52, 53, 53, 54, 54) cm

Yarn used:
Rowan Norwegian Wool
A. 016 Frost Grey - 7(8, 9, 9, 10, 11, 12, 12) balls
B. 014 Cloud Dancer - 2(2, 3, 3, 3, 3, 3, 3) balls
C. 010 Wind Chime - 2(2, 2, 2, 3, 3, 3, 3) balls